No lady yelling STABILIZER MOTION, STABILIZER MOTION, STABILIZER MOTION on the NG.
So how are we supposed to discover a runaway trim? After 6 hours flight time, at night, ****ty weather, tired and turbulence. Very easy to miss.
Unless the PM was trimming? That would be weird too.
The good old DC-8 Trim in motion "wrong answer" buzzer would have had a function in identifying such conditions . . . .